Mountain Cedar location(s):Edwards Plateau, Texas. Regional weather: Friday, January 2 – TX/OK: Across the region today poor weather conditions will continue. Temperatures across the region will get to 40 degrees in the warmest locations with 30s for the high in the far west and north Texas to southern Oklahoma. Across the Edwards Plateau moisture will continue with the chance of rain in most areas, frozen precipitation is still possible in the far west. In the surrounding communities to the east showers and thunderstorms will become more common. Temperatures will remain in the 40s region wide with light winds from the north to northeast. Tonight skies will remain cloudy with temperatures varying little from the cooler daytime conditions. Rain is forecast for the entire region with the Edwards Plateau expected to have a 70% chance and the surrounding communities north through Dallas at 90% chance of rain. Winds will remain from the northeast at light conditions. Tomorrow, the surrounding communities will continue to see showers and thunderstorms as the overall system moves out of the region. The process will begin on the Edwards Plateau and will begin to dry out. Temperatures will bounce back into the mid-50s on the Plateau and into the 60s in the surrounding communities. To the north, the Dallas/Ft. Worth metro region will get into the low 50s. Temperatures will remain in the mid-40s toward the border region and into Oklahoma. Tomorrow, winds will switch coming from the west at light to moderate conditions. Tomorrow night skies will continue to clear with areas of the Plateau in the upper 20s to low 30s. In the surrounding communities low temperatures will drop into the low 30s. To the north in the border region with Oklahoma low temperatures will be in the mid- to low 20s.
Trajectory weather:Air mass trajectories over Texas today will be influenced by cold conditions with high temperatures today just getting into the 40s in most areas. Winds will be light from the northeast, moving trajectories to the southwest. Rain is expected in most areas across the region. Showers and Thunderstorms are expected. Tonight there will be an increasing chance of rain across Texas. Low temperatures will reach the mid-30s over the Plateau and around 40 degrees in the surrounding communities. Tomorrow the chance of rain decreases across the Texas region with just a slight chance of precipitation, early, in the surrounding communities and north toward Oklahoma. Temperatures will rebound with Texas being in the 50’s with the surrounding communities striving towards 60 degrees. Winds will be light to moderate from the west. Tomorrow night skies will clear and temperatures will drop into the mid- to low 30s across Texas and be in the low 20’s northward into Oklahoma. Winds will begin to switch back to a northwesterly flow across the region.
OUTLOOK: *** Low Threat Today and Low Threat Tomorrow *** poor conditions for pollen release today and tomorrow with a high chance of precipitation over the region today and especially tonight. Temperatures have been in the 40s and less for the past couple of days and will continue today to remain there. Winds will be light from the north. Tonight the chance of rain increases and temperatures remain at about the same level. The moisture and cold temperatures are conducive to pollen release and cold air at the ground will keep any pollen that might become entrained near the ground surface. Tomorrow conditions will warm, but usually after periods of very cold conditions it takes the trees a couple of days to warm and begin to pollinate again. Therefore we do not expect high pollen levels today or tomorrow.
Start (s) (shown by black stars on map): Austin, TX
Matrix of sites across the Edwards Plateau (100 meters; 12:00 pm cst)
Prepared by: Estelle Levetin(Faculty of Biological Science, The University of Tulsa, 800 S. Tucker Dr., Tulsa, OK 74104) and Peter K Van de Water (Department of Earth and Environmental Science, California State University Fresno, 2576 East San Ramon Avenue, M/S ST24, Fresno CA 93740-8039). This forecast gives the anticipated future track of released Mountain Cedar pollen, weather conditions over the region and along the forecast pathway, and an estimated time of arrival for various metropolitan areas.Questions: Aerobiology Lab e-mail: email@example.com